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About Us

Herb Entwistle

Broker Owner

Herb Entwistle is a seasoned real estate professional with almost two decades of experience in the Real Estate Industry, having pursued a broad range of real estate endeavors from real estate development, financing, consulting, and sales. He has completed hundreds of $ millions in Real Estate sales volume over his career. And he has represented celebrities, multi-national corporations, private equity along with the average buyer over his career. Herb focuses on all aspects of the Real Estate trade from primary residence, investment properties as well as marketing New Development projects.

Herb started his career in the Financial Sector. Herb has had long term consulting contracts with many of the largest in the industry including Fidelity Investment, Deloitte and Putnam Investments. He brings with him a strong financial background as well as a keen negotiating ability from his training with the Black Swan Group and Chris Voss. Herb has owned and operated a a residential / commercial mortgage company in the Boston area from 2002 to 2008, from which he parlays his skills to the unique and variable world of real estate finance.

Herb is currently a member TAN (Top Agent Network) a verified membership, offered only to sales brokers in the top 10% in the Boston metro market.


Herb and ERG specialize in sales in the prime Boston neighborhoods as well the marketing of new residential developments in the Boston area. Herb has traveled to over 45 countries and has completed many international transactions. Currently, his clients list come from places such as China, Costa Rica, Italy, Spain, Taiwan, Hong Kong, Canada, Germany, Netherlands and Belgium to name a few. He enjoys working with people from various nationalities. Herb is recognized as an expert working with Asian buyers and has had numerous publications mention this fact including Boston Magazine. Herb is a native of New England and a graduate of the University of Rhode Island with a BS in Finance and Management. Herb recently received certification in Real Estate Development and Finance from MIT in Cambridge.


top-agent Boston Magazine – Feature article about Herb Entwistle Regarding China’s Town:
Big Chinese Buyers Are Sinking Their Cash into Boston Real Estate

Marissa Valdez Sales

Leasing Coordinator

Marissa joins ERG and has been very successful in actively selling Boston Real Estate for last 2 years under the guidance of the team. Currently she is key sales member on two new projects in South Boston with over 20 units. She also has over 6 years of corporate and start-up sales experience. Marissa began her career as a Sales Manager at Frito-Lay and has spent 4 years working in tech for She’s worked with hundreds of interior design firms, home builders, architects and design-build firms on advertising programs. Marissa has a passion for sales and helping her clients achieve their goals. She is an excellent communicator and listener.

Marissa is a graduate of the University of San Diego, where she received her Bachelor’s degree in Business Administration and Supply Chain. When she is not working you can find Marissa spending time with her two golden retrievers, at yoga or enjoying Boston sports! Marissa lives in the very popular neighborhood of South Boston.